Why Choose Crutchfield?
Great gear and expert advice
Our experts help you pick the ideal gear for your needs.Meet our advisors
Free tech support for the life of your gear.Read about our one-on-one expert help
You may return items that are complete and like new for any reason within 60 days.See the details of our return policy
Earn one point for every dollar you spend and use those points to save on future purchases.Get full details on Crutchfield Rewards
Deep discounts on car installation gear
We offer vehicle-specific installation instructions, dash kits, wiring harnesses, and speaker accessories at deeply discounted prices with car stereo and speaker purchases. Available for most vehicles.Learn more
Trusted since 1974
Our customers have trusted us with their business, and they’ve helped us win awards for our service.Check out our most recent awards
The manufacturer’s warranty always applies.See more details
Polk Audio CSi20
Center channel speaker
Item # 107CSI20B | MFR # AM2015-A
This item is no longer available.
Our take on the Polk Audio CSi20by Crutchfield's Julie Govan
Unobtrusive design couples with great technology and great pricing to bring you Polk's compact CSi20 a perfect center channel solution for budget-conscious buyers. With one 3/4" silk/polymer dome tweeter and one 5-1/4" Dynamic Balance® driver, the CSi20 offers up the distinct highs and mids needed for crisp, clear dialogue. An affordable and very nice center channel choice for the RTi28.
- frequency response 60-20,000 Hz (-3dB)
- 8-ohm impedance
- sensitivity 89 dB
- handles up to 100 watts
- black finish
- 5-way binding post terminals
- 15"W x 6-9/16"H x 7-9/16"D
- warranty: 5 years
What's in the Box:
- 1 Black center channel loudspeaker with grille
- 4 Self-adhesive rubber feet (if used they will add 0.42" to the unit's height)
- Product registration and survey card
- Online registration card
Features and Specs
|Midrange size (inches)||N/A|
|Woofer size (inches)||5-1/4|
|Frequency Response||60-20k Hz|
|Parts Warranty||5 Years|
|Labor Warranty||5 Years|
Dynamic Balance: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.
Composite Woofer: The speaker uses a 5-1/4" composite Dynamic Balance woofer for clean midrange and deep, accurate bass. For a smoother response and improved durability, the woofer uses a rubber surround.
Silk/Polymer Tweeters: The improved Dynamic Balance silk/polymer tweeter provides clear, detailed highs.
Bass Reflex: There is asingle port tube opening on the front of the speaker for increased and extended bass response.
5-Way Binding Posts: The 5-way binding posts will accept bare wire, pin connectors, spade connectors, banana plugs, and dual banana plugs.
Magnetically Shielded: Because the speaker is magnetically shielded, it can be safely placed directly on or near video sources without creating a distorted picture.
Recommended Center Channel Mode: Polk recommends using this speaker in the normal (small) center channel mode when used with either Dolby Pro Logic or Dolby Digital/DTS . The crossover is a 2nd order low-pass and high-pass filter at 3.6kHz.
Frequency Response: The overall frequency response is 55Hz-22kHz. The -3dB frequency response is 60Hz-20kHz.
Speaker Impedance: The manual incorrectly lists the speaker's nominal impedance as 4 ohms. The impedance is 8 ohms.
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.